So I have recently decided that I am done with trying to collect my own items so I decided to get TooManyItems. I like it and now I would like more mods.

Currently I am using.

Mo Creatures
Zombie Mod Pack with the fly mod
and TooManyItems

Please note that I am using a Mac.

The aether.
Minerraria.
More creeps & weirdos.
Millenсire.
Single Player commands <-- Fucking awesome.

Have you tried MineColony?

Minecolony is cool but the miner don't work properly and the farmer is glitched.
All the mods i have stated above are awesome i just don't know if they work on mac :3
The aether is the awesomish mod ever: http://www.minecraftforum.net/topic/...-and-features/
You should totally take a look onto it.

I just watched this and it looks awesome. I am going to try to figure out how to install it now. http://www.youtube.com/watch?v=SpBVJk6AtDk

And the aether looks really cool. I will be getting it.

AETHER

MO' CREATURES

I need mods I don't already have.

Amazopack
AMCO
Yogbox
JnM Mods Modpack
Scrufism Modpack
All of the above are mod packs with tons of mods to add at once into your minecraft without crashing and such.

Do you know if it is possible to have mo creatures and More creeps & weirdos together? I may be doing something wrong but I don't know.

Yes but you can't use more creeps & weirdos together with the aether.